and the first lady, michelle obama, heads to charlotte today. she will be speaking tomorrow night, the opening night of the convention here. and as for north carolina, the host state of the democratic national convention, may be leaning towards mitt romney right now. take a look at a new charlotte observer poll conducted during the republican convention in tampa. mitt romney has 47% of the vote here, president obama four points back. mitt romney himself is taking a labor day break from campaigning today, but a senior campaign official is defending romney for not mentioning the troops in afghanistan during his convention speech. he spoke to cnn's candy crowley on "state of the union." >> do you think there is an oversight -- in hindsight, should he have said something? >> well, again, he spoke to afghanistan in a big speech before the american legion the night before his convention speech. that was an invitation -- >> sure, but this is a huge, big audience. >> but governor romney's convention speech was an opportunity for him to introduce himself